Whatman 1441-125 Ashless Quantitative Filter Paper, 12.5cm Diameter, 20 Micron, Grade 41 (Pack of 100)

The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminium hydroxides). Also used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates. This filter is also available in the Whatman Disposable Filter Funnel. Retention: 20µm. Diameter: 12.5cm. 100/Pack. Whatman #: 1441-125.